diff --git a/bin/Credential.py b/bin/Credential.py
index 7d0c3bdf..fde80d12 100755
--- a/bin/Credential.py
+++ b/bin/Credential.py
@@ -53,9 +53,9 @@ if __name__ == "__main__":
 
     faup = Faup()
     server_cred = redis.StrictRedis(
-        host=p.config.get("Redis_Level_DB_TermCred", "host"),
-        port=p.config.get("Redis_Level_DB_TermCred", "port"),
-        db=p.config.get("Redis_Level_DB_TermCred", "db"),
+        host=p.config.get("ARDB_TermCred", "host"),
+        port=p.config.get("ARDB_TermCred", "port"),
+        db=p.config.get("ARDB_TermCred", "db"),
         decode_responses=True)
 
     criticalNumberToAlert = p.config.getint("Credential", "criticalNumberToAlert")
diff --git a/bin/Curve.py b/bin/Curve.py
index 16e13536..07f690de 100755
--- a/bin/Curve.py
+++ b/bin/Curve.py
@@ -82,15 +82,15 @@ if __name__ == "__main__":
 
     # REDIS #
     r_serv1 = redis.StrictRedis(
-        host=p.config.get("Redis_Level_DB_Curve", "host"),
-        port=p.config.get("Redis_Level_DB_Curve", "port"),
-        db=p.config.get("Redis_Level_DB_Curve", "db"),
+        host=p.config.get("ARDB_Curve", "host"),
+        port=p.config.get("ARDB_Curve", "port"),
+        db=p.config.get("ARDB_Curve", "db"),
         decode_responses=True)
 
     server_term = redis.StrictRedis(
-        host=p.config.get("Redis_Level_DB_TermFreq", "host"),
-        port=p.config.get("Redis_Level_DB_TermFreq", "port"),
-        db=p.config.get("Redis_Level_DB_TermFreq", "db"),
+        host=p.config.get("ARDB_TermFreq", "host"),
+        port=p.config.get("ARDB_TermFreq", "port"),
+        db=p.config.get("ARDB_TermFreq", "db"),
         decode_responses=True)
 
     # FUNCTIONS #
diff --git a/bin/CurveManageTopSets.py b/bin/CurveManageTopSets.py
index 3ee5a9d5..4eaf9c3f 100755
--- a/bin/CurveManageTopSets.py
+++ b/bin/CurveManageTopSets.py
@@ -148,9 +148,9 @@ if __name__ == '__main__':
     r_temp.sadd("MODULE_TYPE_"+ "CurveManageTopSets" , str(os.getpid()))
 
     server_term = redis.StrictRedis(
-        host=cfg.get("Redis_Level_DB_TermFreq", "host"),
-        port=cfg.getint("Redis_Level_DB_TermFreq", "port"),
-        db=cfg.getint("Redis_Level_DB_TermFreq", "db"),
+        host=cfg.get("ARDB_TermFreq", "host"),
+        port=cfg.getint("ARDB_TermFreq", "port"),
+        db=cfg.getint("ARDB_TermFreq", "db"),
         decode_responses=True)
 
     publisher.info("Script Curve_manage_top_set started")
diff --git a/bin/Duplicates.py b/bin/Duplicates.py
index c89c5391..68dc6a95 100755
--- a/bin/Duplicates.py
+++ b/bin/Duplicates.py
@@ -52,8 +52,9 @@ if __name__ == "__main__":
     for year in range(2013, date_today.year+1):
         for month in range(0, 13):
             dico_redis[str(year)+str(month).zfill(2)] = redis.StrictRedis(
-                host=p.config.get("Redis_Level_DB", "host"), port=year,
-                db=month,
+                host=p.config.get("ARDB_DB", "host"),
+                port=p.config.get("ARDB_DB", "port"),
+                db='year' + 'month',
                 decode_responses=True)
 
     # FUNCTIONS #
diff --git a/bin/LAUNCH.sh b/bin/LAUNCH.sh
index bdcd87ab..3f5841da 100755
--- a/bin/LAUNCH.sh
+++ b/bin/LAUNCH.sh
@@ -11,11 +11,11 @@ CYAN="\\033[1;36m"
 
 [ -z "$AIL_HOME" ] && echo "Needs the env var AIL_HOME. Run the script from the virtual environment." && exit 1;
 [ -z "$AIL_REDIS" ] && echo "Needs the env var AIL_REDIS. Run the script from the virtual environment." && exit 1;
-[ -z "$AIL_LEVELDB" ] && echo "Needs the env var AIL_LEVELDB. Run the script from the virtual environment." && exit 1;
+[ -z "$AIL_ARDB" ] && echo "Needs the env var AIL_ARDB. Run the script from the virtual environment." && exit 1;
 
 export PATH=$AIL_HOME:$PATH
 export PATH=$AIL_REDIS:$PATH
-export PATH=$AIL_LEVELDB:$PATH
+export PATH=$AIL_ARDB:$PATH
 
 function helptext {
     echo -e $YELLOW"
@@ -40,7 +40,7 @@ function helptext {
     (Inside screen Daemons)
     "$RED"
     But first of all you'll need to edit few path where you installed
-    your redis & leveldb servers.
+    your redis & ardb servers.
     "$DEFAULT"
     Usage:
     -----
@@ -58,33 +58,17 @@ function launching_redis {
     screen -S "Redis_AIL" -X screen -t "6380" bash -c 'redis-server '$conf_dir'6380.conf ; read x'
     sleep 0.1
     screen -S "Redis_AIL" -X screen -t "6381" bash -c 'redis-server '$conf_dir'6381.conf ; read x'
-
-    # For Words and curves
-    sleep 0.1
-    screen -S "Redis_AIL" -X screen -t "6382" bash -c 'redis-server '$conf_dir'6382.conf ; read x'
 }
 
-function launching_lvldb {
-    lvdbhost='127.0.0.1'
-    lvdbdir="${AIL_HOME}/LEVEL_DB_DATA/"
-    nb_db=13
+function launching_ardb {
+    conf_dir="${AIL_HOME}/configs/"
 
-    db_y=`date +%Y`
-    #Verify that a dir with the correct year exists, create it otherwise
-    if [ ! -d "$lvdbdir$db_y" ]; then
-        mkdir -p "$db_y"
-    fi
-
-    screen -dmS "LevelDB_AIL"
+    screen -dmS "ARDB_AIL"
     sleep 0.1
-    echo -e $GREEN"\t* Launching Levels DB servers"$DEFAULT
+    echo -e $GREEN"\t* Launching ARDB servers"$DEFAULT
 
-    #Launch a DB for each dir
-    for pathDir in $lvdbdir*/ ; do
-        yDir=$(basename "$pathDir")
-        sleep 0.1
-        screen -S "LevelDB_AIL" -X screen -t "$yDir" bash -c 'redis-leveldb -h; redis-leveldb -H '$lvdbhost' -D '$pathDir' -P '$yDir' -M '$nb_db'; read x'
-    done
+    sleep 0.1
+    screen -S "ARDB_AIL" -X screen -t "6382" bash -c 'ardb-server '$conf_dir'6382.conf ; read x'
 }
 
 function launching_logs {
@@ -118,25 +102,25 @@ function launching_scripts {
     sleep 0.1
     echo -e $GREEN"\t* Launching ZMQ scripts"$DEFAULT
 
-    screen -S "Script_AIL" -X screen -t "ModuleInformation" bash -c 'python3 ModulesInformationV2.py -k 0 -c 1; read x'
+    screen -S "Script_AIL" -X screen -t "ModuleInformation" bash -c './ModulesInformationV2.py -k 0 -c 1; read x'
     sleep 0.1
-    screen -S "Script_AIL" -X screen -t "Mixer" bash -c 'python3 Mixer.py; read x'
+    screen -S "Script_AIL" -X screen -t "Mixer" bash -c './Mixer.py; read x'
     sleep 0.1
-    screen -S "Script_AIL" -X screen -t "Global" bash -c 'python3 Global.py; read x'
+    screen -S "Script_AIL" -X screen -t "Global" bash -c './Global.py; read x'
     sleep 0.1
-    screen -S "Script_AIL" -X screen -t "Duplicates" bash -c 'python3 Duplicates.py; read x'
+    screen -S "Script_AIL" -X screen -t "Duplicates" bash -c './Duplicates.py; read x'
     sleep 0.1
-    screen -S "Script_AIL" -X screen -t "Attributes" bash -c 'python3 Attributes.py; read x'
+    screen -S "Script_AIL" -X screen -t "Attributes" bash -c './Attributes.py; read x'
     sleep 0.1
-    screen -S "Script_AIL" -X screen -t "Lines" bash -c 'python3 Lines.py; read x'
+    screen -S "Script_AIL" -X screen -t "Lines" bash -c './Lines.py; read x'
     sleep 0.1
     screen -S "Script_AIL" -X screen -t "DomClassifier" bash -c './DomClassifier.py; read x'
     sleep 0.1
-    screen -S "Script_AIL" -X screen -t "Categ" bash -c 'python3 Categ.py; read x'
+    screen -S "Script_AIL" -X screen -t "Categ" bash -c './Categ.py; read x'
     sleep 0.1
-    screen -S "Script_AIL" -X screen -t "Tokenize" bash -c 'python3 Tokenize.py; read x'
+    screen -S "Script_AIL" -X screen -t "Tokenize" bash -c './Tokenize.py; read x'
     sleep 0.1
-    screen -S "Script_AIL" -X screen -t "CreditCards" bash -c 'python3 CreditCards.py; read x'
+    screen -S "Script_AIL" -X screen -t "CreditCards" bash -c './CreditCards.py; read x'
     sleep 0.1
     screen -S "Script_AIL" -X screen -t "Onion" bash -c './Onion.py; read x'
     sleep 0.1
@@ -162,6 +146,8 @@ function launching_scripts {
     sleep 0.1
     screen -S "Script_AIL" -X screen -t "Base64" bash -c './Base64.py; read x'
     sleep 0.1
+    screen -S "Script_AIL" -X screen -t "DbDump" bash -c './DbDump.py; read x'
+    sleep 0.1
     screen -S "Script_AIL" -X screen -t "Bitcoin" bash -c './Bitcoin.py; read x'
     sleep 0.1
     screen -S "Script_AIL" -X screen -t "Phone" bash -c './Phone.py; read x'
@@ -189,7 +175,10 @@ function shutting_down_redis {
     bash -c $redis_dir'redis-cli -p 6380 SHUTDOWN'
     sleep 0.1
     bash -c $redis_dir'redis-cli -p 6381 SHUTDOWN'
-    sleep 0.1
+}
+
+function shutting_down_ardb {
+    redis_dir=${AIL_HOME}/redis/src/
     bash -c $redis_dir'redis-cli -p 6382 SHUTDOWN'
 }
 
@@ -214,12 +203,21 @@ function checking_redis {
        flag_redis=1
     fi
     sleep 0.1
+
+    return $flag_redis;
+}
+
+function checking_ardb {
+    flag_ardb=0
+    redis_dir=${AIL_HOME}/redis/src/
+    sleep 0.2
     bash -c $redis_dir'redis-cli -p 6382 PING | grep "PONG" &> /dev/null'
     if [ ! $? == 0 ]; then
        echo -e $RED"\t6382 not ready"$DEFAULT
-       flag_redis=1
+       flag_ardb=1
     fi
-    return $flag_redis;
+
+    return $flag_ardb;
 }
 
 #If no params, display the help
@@ -229,12 +227,12 @@ helptext;
 
 ############### TESTS ###################
 isredis=`screen -ls | egrep '[0-9]+.Redis_AIL' | cut -d. -f1`
-islvldb=`screen -ls | egrep '[0-9]+.LevelDB_AIL' | cut -d. -f1`
+isardb=`screen -ls | egrep '[0-9]+.ARDB_AIL' | cut -d. -f1`
 islogged=`screen -ls | egrep '[0-9]+.Logging_AIL' | cut -d. -f1`
 isqueued=`screen -ls | egrep '[0-9]+.Queue_AIL' | cut -d. -f1`
 isscripted=`screen -ls | egrep '[0-9]+.Script_AIL' | cut -d. -f1`
 
-options=("Redis" "LevelDB" "Logs" "Queues" "Scripts" "Killall" "Shutdown" "Update-config")
+options=("Redis" "Ardb" "Logs" "Queues" "Scripts" "Killall" "Shutdown" "Update-config")
 
 menu() {
     echo "What do you want to Launch?:"
@@ -265,9 +263,9 @@ for i in ${!options[@]}; do
                     echo -e $RED"\t* A screen is already launched"$DEFAULT
                 fi
                 ;;
-            LevelDB)
-                if [[ ! $islvldb ]]; then
-                    launching_lvldb;
+            Ardb)
+                if [[ ! $isardb ]]; then
+                    launching_ardb;
                 else
                     echo -e $RED"\t* A screen is already launched"$DEFAULT
                 fi
@@ -288,12 +286,13 @@ for i in ${!options[@]}; do
                 ;;
             Scripts)
                 if [[ ! $isscripted ]]; then
-                    if checking_redis; then
+                  sleep 1
+                    if checking_redis && checking_ardb; then
                         launching_scripts;
                     else
-                        echo -e $YELLOW"\tScript not started, waiting 10 secondes"$DEFAULT
-                        sleep 10
-                        if checking_redis; then
+                        echo -e $YELLOW"\tScript not started, waiting 5 secondes"$DEFAULT
+                        sleep 5
+                        if checking_redis && checking_ardb; then
                             launching_scripts;
                         else
                             echo -e $RED"\tScript not started"$DEFAULT
@@ -304,14 +303,17 @@ for i in ${!options[@]}; do
                 fi
                 ;;
             Killall)
-                if [[ $isredis || $islvldb || $islogged || $isqueued || $isscripted ]]; then
+                if [[ $isredis || $isardb || $islogged || $isqueued || $isscripted ]]; then
                     echo -e $GREEN"Gracefully closing redis servers"$DEFAULT
                     shutting_down_redis;
+                    sleep 0.2
+                    echo -e $GREEN"Gracefully closing ardb servers"$DEFAULT
+                    shutting_down_ardb;
                     echo -e $GREEN"Killing all"$DEFAULT
-                    kill $isredis $islvldb $islogged $isqueued $isscripted
+                    kill $isredis $isardb $islogged $isqueued $isscripted
                     sleep 0.2
                     echo -e $ROSE`screen -ls`$DEFAULT
-                    echo -e $GREEN"\t* $isredis $islvldb $islogged $isqueued $isscripted killed."$DEFAULT
+                    echo -e $GREEN"\t* $isredis $isardb $islogged $isqueued $isscripted killed."$DEFAULT
                 else
                     echo -e $RED"\t* No screen to kill"$DEFAULT
                 fi
diff --git a/bin/ModuleStats.py b/bin/ModuleStats.py
index 05ff8dde..6743cdca 100755
--- a/bin/ModuleStats.py
+++ b/bin/ModuleStats.py
@@ -133,9 +133,9 @@ if __name__ == '__main__':
 
     # REDIS #
     r_serv_trend = redis.StrictRedis(
-        host=p.config.get("Redis_Level_DB_Trending", "host"),
-        port=p.config.get("Redis_Level_DB_Trending", "port"),
-        db=p.config.get("Redis_Level_DB_Trending", "db"),
+        host=p.config.get("ARDB_Trending", "host"),
+        port=p.config.get("ARDB_Trending", "port"),
+        db=p.config.get("ARDB_Trending", "db"),
         decode_responses=True)
 
     r_serv_pasteName = redis.StrictRedis(
diff --git a/bin/RegexForTermsFrequency.py b/bin/RegexForTermsFrequency.py
index 5e867b27..7aea03f0 100755
--- a/bin/RegexForTermsFrequency.py
+++ b/bin/RegexForTermsFrequency.py
@@ -54,9 +54,9 @@ if __name__ == "__main__":
 
     # REDIS #
     server_term = redis.StrictRedis(
-        host=p.config.get("Redis_Level_DB_TermFreq", "host"),
-        port=p.config.get("Redis_Level_DB_TermFreq", "port"),
-        db=p.config.get("Redis_Level_DB_TermFreq", "db"),
+        host=p.config.get("ARDB_TermFreq", "host"),
+        port=p.config.get("ARDB_TermFreq", "port"),
+        db=p.config.get("ARDB_TermFreq", "db"),
         decode_responses=True)
 
     # FUNCTIONS #
diff --git a/bin/Repartition_graph.py b/bin/Repartition_graph.py
index 02c3adc3..5aa146a2 100755
--- a/bin/Repartition_graph.py
+++ b/bin/Repartition_graph.py
@@ -33,9 +33,9 @@ def main():
     # port generated automatically depending on the date
     curYear = datetime.now().year if args.year is None else args.year
     r_serv = redis.StrictRedis(
-        host=cfg.get("Redis_Level_DB_Hashs", "host"),
-        port=curYear,
-        db=cfg.getint("Redis_Level_DB_Hashs", "db"),
+        host=cfg.get("ARDB_Hashs", "host"),
+        port=cfg.getint("ARDB_Hashs", "port"),
+        db=curYear,
         decode_responses=True)
 
     # LOGGING #
diff --git a/bin/SentimentAnalysis.py b/bin/SentimentAnalysis.py
index 5f8a64a4..34beea3f 100755
--- a/bin/SentimentAnalysis.py
+++ b/bin/SentimentAnalysis.py
@@ -152,9 +152,9 @@ if __name__ == '__main__':
 
     # REDIS_LEVEL_DB #
     server = redis.StrictRedis(
-        host=p.config.get("Redis_Level_DB_Sentiment", "host"),
-        port=p.config.get("Redis_Level_DB_Sentiment", "port"),
-        db=p.config.get("Redis_Level_DB_Sentiment", "db"),
+        host=p.config.get("ARDB_Sentiment", "host"),
+        port=p.config.get("ARDB_Sentiment", "port"),
+        db=p.config.get("ARDB_Sentiment", "db"),
         decode_responses=True)
 
     while True:
diff --git a/bin/SetForTermsFrequency.py b/bin/SetForTermsFrequency.py
index 5f2abc2c..b42f07e6 100755
--- a/bin/SetForTermsFrequency.py
+++ b/bin/SetForTermsFrequency.py
@@ -52,9 +52,9 @@ if __name__ == "__main__":
 
     # REDIS #
     server_term = redis.StrictRedis(
-        host=p.config.get("Redis_Level_DB_TermFreq", "host"),
-        port=p.config.get("Redis_Level_DB_TermFreq", "port"),
-        db=p.config.get("Redis_Level_DB_TermFreq", "db"),
+        host=p.config.get("ARDB_TermFreq", "host"),
+        port=p.config.get("ARDB_TermFreq", "port"),
+        db=p.config.get("ARDB_TermFreq", "db"),
         decode_responses=True)
 
     # FUNCTIONS #
diff --git a/bin/WebStats.py b/bin/WebStats.py
index 4951ffe2..7eecb0d2 100755
--- a/bin/WebStats.py
+++ b/bin/WebStats.py
@@ -114,9 +114,9 @@ if __name__ == '__main__':
 
     # REDIS #
     r_serv_trend = redis.StrictRedis(
-        host=p.config.get("Redis_Level_DB_Trending", "host"),
-        port=p.config.get("Redis_Level_DB_Trending", "port"),
-        db=p.config.get("Redis_Level_DB_Trending", "db"),
+        host=p.config.get("ARDB_Trending", "host"),
+        port=p.config.get("ARDB_Trending", "port"),
+        db=p.config.get("ARDB_Trending", "db"),
         decode_responses=True)
 
     # FILE CURVE SECTION #
diff --git a/bin/alertHandler.py b/bin/alertHandler.py
index 41888be3..60787b77 100755
--- a/bin/alertHandler.py
+++ b/bin/alertHandler.py
@@ -52,9 +52,9 @@ if __name__ == "__main__":
     # port generated automatically depending on the date
     curYear = datetime.now().year
     server = redis.StrictRedis(
-                host=p.config.get("Redis_Level_DB", "host"),
-                port=curYear,
-                db=p.config.get("Redis_Level_DB", "db"),
+                host=p.config.get("ARDB_DB", "host"),
+                port=p.config.get("ARDB_DB", "port"),
+                db=curYear,
                 decode_responses=True)
 
     # FUNCTIONS #
diff --git a/bin/packages/config.cfg.sample b/bin/packages/config.cfg.sample
index 5d34f9b2..873f1003 100644
--- a/bin/packages/config.cfg.sample
+++ b/bin/packages/config.cfg.sample
@@ -112,37 +112,38 @@ host = localhost
 port = 6381
 db = 1
 
-##### LevelDB #####
-[Redis_Level_DB_Curve]
+##### ARDB #####
+[ARDB_Curve]
 host = localhost
 port = 6382
 db = 1
 
-[Redis_Level_DB_Sentiment]
+[ARDB_Sentiment]
 host = localhost
 port = 6382
 db = 4
 
-[Redis_Level_DB_TermFreq]
+[ARDB_TermFreq]
 host = localhost
 port = 6382
 db = 2
 
-[Redis_Level_DB_TermCred]
+[ARDB_TermCred]
 host = localhost
 port = 6382
 db = 5
 
-[Redis_Level_DB]
+[ARDB_DB]
 host = localhost
+port = 6382
 db = 0
 
-[Redis_Level_DB_Trending]
+[ARDB_Trending]
 host = localhost
 port = 6382
 db = 3
 
-[Redis_Level_DB_Hashs]
+[ARDB_Hashs]
 host = localhost
 db = 1
 
diff --git a/bin/packages/modules.cfg b/bin/packages/modules.cfg
index b9e29506..728763c4 100644
--- a/bin/packages/modules.cfg
+++ b/bin/packages/modules.cfg
@@ -114,6 +114,10 @@ publish = Redis_Duplicate,Redis_alertHandler
 subscribe = Redis_Global
 publish = Redis_Duplicate,Redis_alertHandler
 
+[DbDump]
+subscribe = Redis_Global
+publish = Redis_Duplicate,Redis_alertHandler
+
 [Bitcoin]
 subscribe = Redis_Global
 publish = Redis_Duplicate,Redis_alertHandler
diff --git a/configs/6382.conf b/configs/6382.conf
old mode 100644
new mode 100755
index 667fb03a..fecfa7dd
--- a/configs/6382.conf
+++ b/configs/6382.conf
@@ -1,4 +1,7 @@
-# Redis configuration file example
+# Ardb configuration file example, modified from redis's conf file.
+
+# Home dir for ardb instance, it can be referenced by ${ARDB_HOME} in this config file
+home  ../DATA_ARDB/
 
 # Note on units: when memory size is needed, it is possible to specify
 # it in the usual form of 1k 5GB 4M and so forth:
@@ -12,63 +15,71 @@
 #
 # units are case insensitive so 1GB 1Gb 1gB are all the same.
 
-################################## INCLUDES ###################################
-
-# Include one or more other config files here.  This is useful if you
-# have a standard template that goes to all Redis server but also need
-# to customize a few per-server settings.  Include files can include
-# other files, so use this wisely.
-#
-# Notice option "include" won't be rewritten by command "CONFIG REWRITE"
-# from admin or Redis Sentinel. Since Redis always uses the last processed
-# line as value of a configuration directive, you'd better put includes
-# at the beginning of this file to avoid overwriting config change at runtime.
-#
-# If instead you are interested in using includes to override configuration
-# options, it is better to use include as the last line.
-#
-# include /path/to/local.conf
-# include /path/to/other.conf
-
-################################ GENERAL  #####################################
-
-# By default Redis does not run as a daemon. Use 'yes' if you need it.
-# Note that Redis will write a pid file in /var/run/redis.pid when daemonized.
+# By default Ardb does not run as a daemon. Use 'yes' if you need it.
 daemonize no
 
-# When running daemonized, Redis writes a pid file in /var/run/redis.pid by
+# When running daemonized, Ardb writes a pid file in ${ARDB_HOME}/ardb.pid by
 # default. You can specify a custom pid file location here.
-#pidfile /var/run/redis.pid
+pidfile ${ARDB_HOME}/ardb.pid
 
-# Accept connections on the specified port, default is 6379.
-# If port 0 is specified Redis will not listen on a TCP socket.
-port 6382
+# The thread pool size for the corresponding all listen servers, -1 means current machine's cpu number
+thread-pool-size              4
 
-# TCP listen() backlog.
-#
-# In high requests-per-second environments you need an high backlog in order
-# to avoid slow clients connections issues. Note that the Linux kernel
-# will silently truncate it to the value of /proc/sys/net/core/somaxconn so
-# make sure to raise both the value of somaxconn and tcp_max_syn_backlog
-# in order to get the desired effect.
-tcp-backlog 511
+#Accept connections on the specified host&port/unix socket, default is 0.0.0.0:16379.
+server[0].listen              127.0.0.1:6382
+# If current qps exceed the limit, Ardb would return an error.
+#server[0].qps-limit           1000
 
-# By default Redis listens for connections from all the network interfaces
-# available on the server. It is possible to listen to just one or multiple
-# interfaces using the "bind" configuration directive, followed by one or
-# more IP addresses.
-#
-# Examples:
-#
-# bind 192.168.1.100 10.0.0.1
-# bind 127.0.0.1
+#listen on unix socket
+#server[1].listen             /tmp/ardb.sock
+#server[1].unixsocketperm     755
+#server[1].qps-limit          1000
 
-# Specify the path for the Unix socket that will be used to listen for
-# incoming connections. There is no default, so Redis will not listen
-# on a unix socket when not specified.
+# 'qps-limit-per-host' used to limit the request per second from same host
+# 'qps-limit-per-connection' used to limit the request per second from same connection
+qps-limit-per-host                  0
+qps-limit-per-connection            0
+
+# Specify the optimized RocksDB compaction strategies.
+# If anything other than none is set then the rocksdb.options will not be used.
+# The property can one of:
+# OptimizeLevelStyleCompaction
+# OptimizeUniversalStyleCompaction
+# none
 #
-#unixsocket /tmp/redis.sock
-#unixsocketperm 755
+rocksdb.compaction           OptimizeLevelStyleCompaction
+
+# Enable this to indicate that hsca/sscan/zscan command use total order mode for rocksdb engine
+rocksdb.scan-total-order              false
+
+# Disable RocksDB WAL may improve the write performance but
+# data in the un-flushed memtables might be lost in case of a RocksDB shutdown.
+# Disabling WAL provides similar guarantees as Redis.
+rocksdb.disableWAL            false
+
+#rocksdb's options
+rocksdb.options               write_buffer_size=512M;max_write_buffer_number=5;min_write_buffer_number_to_merge=3;compression=kSnappyCompression;\
+                              bloom_locality=1;memtable_prefix_bloom_size_ratio=0.1;\
+                              block_based_table_factory={block_cache=512M;filter_policy=bloomfilter:10:true};\
+                              create_if_missing=true;max_open_files=10000;rate_limiter_bytes_per_sec=50M;\
+                              use_direct_io_for_flush_and_compaction=true;use_adaptive_mutex=true
+
+#leveldb's options
+leveldb.options               block_cache_size=512M,write_buffer_size=128M,max_open_files=5000,block_size=4k,block_restart_interval=16,\
+                              bloom_bits=10,compression=snappy,logenable=yes,max_file_size=2M
+                              
+#lmdb's options 
+lmdb.options                  database_maxsize=10G,database_maxdbs=4096,readahead=no,batch_commit_watermark=1024
+
+#perconaft's options
+perconaft.options              cache_size=128M,compression=snappy
+
+#wiredtiger's options
+wiredtiger.options            cache_size=512M,session_max=8k,chunk_size=100M,block_size=4k,bloom_bits=10,\
+                              mmap=false,compressor=snappy
+                              
+#forestdb's options
+forestdb.options              chunksize=8,blocksize=4K
 
 # Close the connection after a client is idle for N seconds (0 to disable)
 timeout 0
@@ -91,115 +102,51 @@ tcp-keepalive 0
 
 # Specify the server verbosity level.
 # This can be one of:
-# debug (a lot of information, useful for development/testing)
-# verbose (many rarely useful info, but not a mess like the debug level)
-# notice (moderately verbose, what you want in production probably)
-# warning (only very important / critical messages are logged)
-loglevel notice
+# error
+# warn
+# info 
+# debug
+# trace
+loglevel info
 
-# Specify the log file name. Also the empty string can be used to force
+# Specify the log file name. Also 'stdout' can be used to force
 # Redis to log on the standard output. Note that if you use standard
 # output for logging but daemonize, logs will be sent to /dev/null
-logfile ""
+#logfile ${ARDB_HOME}/log/ardb-server.log
+logfile  stdout
 
-# To enable logging to the system logger, just set 'syslog-enabled' to yes,
-# and optionally update the other syslog parameters to suit your needs.
-# syslog-enabled no
 
-# Specify the syslog identity.
-# syslog-ident redis
-
-# Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7.
-# syslog-facility local0
-
-# Set the number of databases. The default database is DB 0, you can select
-# a different one on a per-connection basis using SELECT <dbid> where
-# dbid is a number between 0 and 'databases'-1
-databases 16
-
-################################ SNAPSHOTTING  ################################
-#
-# Save the DB on disk:
-#
-#   save <seconds> <changes>
-#
-#   Will save the DB if both the given number of seconds and the given
-#   number of write operations against the DB occurred.
-#
-#   In the example below the behaviour will be to save:
-#   after 900 sec (15 min) if at least 1 key changed
-#   after 300 sec (5 min) if at least 10 keys changed
-#   after 60 sec if at least 10000 keys changed
-#
-#   Note: you can disable saving at all commenting all the "save" lines.
-#
-#   It is also possible to remove all the previously configured save
-#   points by adding a save directive with a single empty string argument
-#   like in the following example:
-#
-#   save ""
-
-#save 900 1
-#save 300 10
-save 300 100000
-
-# By default Redis will stop accepting writes if RDB snapshots are enabled
-# (at least one save point) and the latest background save failed.
-# This will make the user aware (in a hard way) that data is not persisting
-# on disk properly, otherwise chances are that no one will notice and some
-# disaster will happen.
-#
-# If the background saving process will start working again Redis will
-# automatically allow writes again.
-#
-# However if you have setup your proper monitoring of the Redis server
-# and persistence, you may want to disable this feature so that Redis will
-# continue to work as usual even if there are problems with disk,
-# permissions, and so forth.
-stop-writes-on-bgsave-error yes
-
-# Compress string objects using LZF when dump .rdb databases?
-# For default that's set to 'yes' as it's almost always a win.
-# If you want to save some CPU in the saving child set it to 'no' but
-# the dataset will likely be bigger if you have compressible values or keys.
-rdbcompression yes
-
-# Since version 5 of RDB a CRC64 checksum is placed at the end of the file.
-# This makes the format more resistant to corruption but there is a performance
-# hit to pay (around 10%) when saving and loading RDB files, so you can disable it
-# for maximum performances.
-#
-# RDB files created with checksum disabled have a checksum of zero that will
-# tell the loading code to skip the check.
-rdbchecksum yes
-
-# The filename where to dump the DB
-dbfilename dump6382.rdb
-
-# The working directory.
+# The working data directory.
 #
 # The DB will be written inside this directory, with the filename specified
 # above using the 'dbfilename' configuration directive.
-#
+# 
 # The Append Only File will also be created inside this directory.
-#
+# 
 # Note that you must specify a directory here, not a file name.
-dir ../dumps/
+data-dir ${ARDB_HOME}/data
+
 ################################# REPLICATION #################################
 
-# Master-Slave replication. Use slaveof to make a Redis instance a copy of
-# another Redis server. Note that the configuration is local to the slave
+# Master-Slave replication. Use slaveof to make a Ardb instance a copy of
+# another Ardb server. Note that the configuration is local to the slave
 # so for example it is possible to configure the slave to save the DB with a
 # different interval, or to listen to another port, and so on.
 #
-# slaveof <masterip> <masterport>
+# slaveof <masterip>:<masterport>
+#slaveof 127.0.0.1:6379
+
+
+# By default, ardb use 2 threads to execute commands synced from master.
+# -1 means use current CPU number threads instead.
+slave-workers   2
+
+# Max synced command queue size in memory.
+max-slave-worker-queue  1024
+
+# The directory for replication.
+repl-dir                          ${ARDB_HOME}/repl
 
-# If the master is password protected (using the "requirepass" configuration
-# directive below) it is possible to tell the slave to authenticate before
-# starting the replication synchronization process, otherwise the master will
-# refuse the slave request.
-#
-# masterauth <master-password>
 
 # When a slave loses its connection with the master, or when the replication
 # is still in progress, the slave can act in two different ways:
@@ -214,33 +161,55 @@ dir ../dumps/
 #
 slave-serve-stale-data yes
 
+# The slave priority is an integer number published by Ardb/Redis in the INFO output.
+# It is used by Redis Sentinel in order to select a slave to promote into a
+# master if the master is no longer working correctly.
+#
+# A slave with a low priority number is considered better for promotion, so
+# for instance if there are three slaves with priority 10, 100, 25 Sentinel will
+# pick the one with priority 10, that is the lowest.
+#
+# However a special priority of 0 marks the slave as not able to perform the
+# role of master, so a slave with priority of 0 will never be selected by
+# Redis Sentinel for promotion.
+#
+# By default the priority is 100.
+slave-priority 100
+
 # You can configure a slave instance to accept writes or not. Writing against
 # a slave instance may be useful to store some ephemeral data (because data
 # written on a slave will be easily deleted after resync with the master) but
 # may also cause problems if clients are writing to it because of a
 # misconfiguration.
 #
-# Since Redis 2.6 by default slaves are read-only.
-#
 # Note: read only slaves are not designed to be exposed to untrusted clients
 # on the internet. It's just a protection layer against misuse of the instance.
 # Still a read only slave exports by default all the administrative commands
 # such as CONFIG, DEBUG, and so forth. To a limited extent you can improve
 # security of read only slaves using 'rename-command' to shadow all the
 # administrative / dangerous commands.
+# 
+# Note: any requests processed by non read only slaves would no write to replication 
+# log and sync to connected slaves. 
 slave-read-only yes
 
+# The directory for backup.
+backup-dir                        ${ARDB_HOME}/backup
+#
+# You can configure the backup file format as 'redis' or 'ardb'. The 'ardb' format 
+# can only used by ardb instance, while 'redis' format file can be used by redis 
+# and ardb instance. 
+backup-file-format                ardb
+
+
 # Slaves send PINGs to server in a predefined interval. It's possible to change
 # this interval with the repl_ping_slave_period option. The default value is 10
 # seconds.
 #
 # repl-ping-slave-period 10
 
-# The following option sets the replication timeout for:
-#
-# 1) Bulk transfer I/O during SYNC, from the point of view of slave.
-# 2) Master timeout from the point of view of slaves (data, pings).
-# 3) Slave timeout from the point of view of masters (REPLCONF ACK pings).
+# The following option sets a timeout for both Bulk transfer I/O timeout and
+# master data or ping response timeout. The default value is 60 seconds.
 #
 # It is important to make sure that this value is greater than the value
 # specified for repl-ping-slave-period otherwise a timeout will be detected
@@ -250,7 +219,7 @@ slave-read-only yes
 
 # Disable TCP_NODELAY on the slave socket after SYNC?
 #
-# If you select "yes" Redis will use a smaller number of TCP packets and
+# If you select "yes" Ardb will use a smaller number of TCP packets and
 # less bandwidth to send data to slaves. But this can add a delay for
 # the data to appear on the slave side, up to 40 milliseconds with
 # Linux kernels using a default configuration.
@@ -272,9 +241,46 @@ repl-disable-tcp-nodelay no
 # The biggest the replication backlog, the longer the time the slave can be
 # disconnected and later be able to perform a partial resynchronization.
 #
-# The backlog is only allocated once there is at least a slave connected.
+# If the size is configured by 0, then Ardb instance can NOT serve as a master.
 #
-# repl-backlog-size 1mb
+# repl-backlog-size 500m 
+repl-backlog-size           1G
+repl-backlog-cache-size     100M
+snapshot-max-lag-offset     500M
+
+# Set the max number of snapshots. By default this limit is set to 10 snapshot.
+# Once the limit is reached Ardb would try to remove the oldest snapshots
+maxsnapshots                10
+
+# It is possible for a master to stop accepting writes if there are less than
+# N slaves connected, having a lag less or equal than M seconds.
+#
+# The N slaves need to be in "online" state.
+#
+# The lag in seconds, that must be <= the specified value, is calculated from
+# the last ping received from the slave, that is usually sent every second.
+#
+# This option does not GUARANTEE that N replicas will accept the write, but
+# will limit the window of exposure for lost writes in case not enough slaves
+# are available, to the specified number of seconds.
+#
+# For example to require at least 3 slaves with a lag <= 10 seconds use:
+#
+# min-slaves-to-write 3
+# min-slaves-max-lag 10
+
+# When a slave loses its connection with the master, or when the replication
+# is still in progress, the slave can act in two different ways:
+#
+# 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will
+#    still reply to client requests, possibly with out of date data, or the
+#    data set may just be empty if this is the first synchronization.
+#
+# 2) if slave-serve-stale-data is set to 'no' the slave will reply with
+#    an error "SYNC with master in progress" to all the kind of commands
+#    but to INFO and SLAVEOF.
+#
+slave-serve-stale-data yes
 
 # After a master has no longer connected slaves for some time, the backlog
 # will be freed. The following option configures the amount of seconds that
@@ -285,42 +291,32 @@ repl-disable-tcp-nodelay no
 #
 # repl-backlog-ttl 3600
 
-# The slave priority is an integer number published by Redis in the INFO output.
-# It is used by Redis Sentinel in order to select a slave to promote into a
-# master if the master is no longer working correctly.
-#
-# A slave with a low priority number is considered better for promotion, so
-# for instance if there are three slaves with priority 10, 100, 25 Sentinel will
-# pick the one with priority 10, that is the lowest.
-#
-# However a special priority of 0 marks the slave as not able to perform the
-# role of master, so a slave with priority of 0 will never be selected by
-# Redis Sentinel for promotion.
-#
-# By default the priority is 100.
-slave-priority 100
+# Slave clear current data store before full resync to master. 
+# It make sure that slave keep consistent with master's data. But slave may cost a 
+# long time to delete data, it depends on 
+# If set by no, then slave may have different data with master.
+slave-cleardb-before-fullresync    yes
 
-# It is possible for a master to stop accepting writes if there are less than
-# N slaves connected, having a lag less or equal than M seconds.
+# Master/Slave instance would persist sync state every 'repl-backlog-sync-period' secs.
+repl-backlog-sync-period         5
+
+# Slave would ignore any 'expire' setting from replication command if set by 'yes'.
+# It could be used if master is redis instance serve hot data with expire setting, slave is
+# ardb instance which persist all data. 
+# Since master redis instance would generate a 'del' for each expired key, slave should ignore
+# all 'del' command too by setting 'slave-ignore-del' to 'yes' for this scenario.
+slave-ignore-expire   no
+slave-ignore-del      no
+
+# After a master has no longer connected slaves for some time, the backlog
+# will be freed. The following option configures the amount of seconds that
+# need to elapse, starting from the time the last slave disconnected, for
+# the backlog buffer to be freed.
 #
-# The N slaves need to be in "online" state.
+# A value of 0 means to never release the backlog.
 #
-# The lag in seconds, that must be <= the specified value, is calculated from
-# the last ping received from the slave, that is usually sent every second.
-#
-# This option does not GUARANTEES that N replicas will accept the write, but
-# will limit the window of exposure for lost writes in case not enough slaves
-# are available, to the specified number of seconds.
-#
-# For example to require at least 3 slaves with a lag <= 10 seconds use:
-#
-# min-slaves-to-write 3
-# min-slaves-max-lag 10
-#
-# Setting one or the other to 0 disables the feature.
-#
-# By default min-slaves-to-write is set to 0 (feature disabled) and
-# min-slaves-max-lag is set to 10.
+# repl-backlog-ttl 3600
+
 
 ################################## SECURITY ###################################
 
@@ -330,7 +326,7 @@ slave-priority 100
 #
 # This should stay commented out for backward compatibility and because most
 # people do not need auth (e.g. they run their own servers).
-#
+# 
 # Warning: since Redis is pretty fast an outside user can try up to
 # 150k passwords per second against a good box. This means that you should
 # use a very strong password otherwise it will be very easy to break.
@@ -356,6 +352,15 @@ slave-priority 100
 # Please note that changing the name of commands that are logged into the
 # AOF file or transmitted to slaves may cause problems.
 
+################################ CLUSTER  ###############################
+
+# Max execution time of a Lua script in milliseconds.
+#zookeeper-servers 127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183
+#zk-recv-timeout  10000
+#zk-clientid-file ${ARDB_HOME}/ardb.zkclientid
+cluster-name   ardb-cluster
+
+
 ################################### LIMITS ####################################
 
 # Set the max number of connected clients at the same time. By default
@@ -369,155 +374,37 @@ slave-priority 100
 #
 # maxclients 10000
 
-# Don't use more memory than the specified amount of bytes.
-# When the memory limit is reached Redis will try to remove keys
-# according to the eviction policy selected (see maxmemory-policy).
-#
-# If Redis can't remove keys according to the policy, or if the policy is
-# set to 'noeviction', Redis will start to reply with errors to commands
-# that would use more memory, like SET, LPUSH, and so on, and will continue
-# to reply to read-only commands like GET.
-#
-# This option is usually useful when using Redis as an LRU cache, or to set
-# a hard memory limit for an instance (using the 'noeviction' policy).
-#
-# WARNING: If you have slaves attached to an instance with maxmemory on,
-# the size of the output buffers needed to feed the slaves are subtracted
-# from the used memory count, so that network problems / resyncs will
-# not trigger a loop where keys are evicted, and in turn the output
-# buffer of slaves is full with DELs of keys evicted triggering the deletion
-# of more keys, and so forth until the database is completely emptied.
-#
-# In short... if you have slaves attached it is suggested that you set a lower
-# limit for maxmemory so that there is some free RAM on the system for slave
-# output buffers (but this is not needed if the policy is 'noeviction').
-#
-# maxmemory <bytes>
 
-# MAXMEMORY POLICY: how Redis will select what to remove when maxmemory
-# is reached. You can select among five behaviors:
-#
-# volatile-lru -> remove the key with an expire set using an LRU algorithm
-# allkeys-lru -> remove any key accordingly to the LRU algorithm
-# volatile-random -> remove a random key with an expire set
-# allkeys-random -> remove a random key, any key
-# volatile-ttl -> remove the key with the nearest expire time (minor TTL)
-# noeviction -> don't expire at all, just return an error on write operations
-#
-# Note: with any of the above policies, Redis will return an error on write
-#       operations, when there are not suitable keys for eviction.
-#
-#       At the date of writing this commands are: set setnx setex append
-#       incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd
-#       sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby
-#       zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby
-#       getset mset msetnx exec sort
-#
-# The default is:
-#
-# maxmemory-policy volatile-lru
+# The client output buffer limits can be used to force disconnection of clients
+# that are not reading data from the server fast enough for some reason (a
+# common reason is that a Pub/Sub/Slave client can't consume messages as fast as the
+# publisher can produce them).
+slave-client-output-buffer-limit 256mb
+pubsub-client-output-buffer-limit 32mb
 
-# LRU and minimal TTL algorithms are not precise algorithms but approximated
-# algorithms (in order to save memory), so you can select as well the sample
-# size to check. For instance for default Redis will check three keys and
-# pick the one that was used less recently, you can change the sample size
-# using the following configuration directive.
-#
-# maxmemory-samples 3
+################################## SLOW LOG ###################################
 
-############################## APPEND ONLY MODE ###############################
+# The Redis Slow Log is a system to log queries that exceeded a specified
+# execution time. The execution time does not include the I/O operations
+# like talking with the client, sending the reply and so forth,
+# but just the time needed to actually execute the command (this is the only
+# stage of command execution where the thread is blocked and can not serve
+# other requests in the meantime).
+# 
+# You can configure the slow log with two parameters: one tells Redis
+# what is the execution time, in microseconds, to exceed in order for the
+# command to get logged, and the other parameter is the length of the
+# slow log. When a new command is logged the oldest one is removed from the
+# queue of logged commands.
 
-# By default Redis asynchronously dumps the dataset on disk. This mode is
-# good enough in many applications, but an issue with the Redis process or
-# a power outage may result into a few minutes of writes lost (depending on
-# the configured save points).
-#
-# The Append Only File is an alternative persistence mode that provides
-# much better durability. For instance using the default data fsync policy
-# (see later in the config file) Redis can lose just one second of writes in a
-# dramatic event like a server power outage, or a single write if something
-# wrong with the Redis process itself happens, but the operating system is
-# still running correctly.
-#
-# AOF and RDB persistence can be enabled at the same time without problems.
-# If the AOF is enabled on startup Redis will load the AOF, that is the file
-# with the better durability guarantees.
-#
-# Please check http://redis.io/topics/persistence for more information.
+# The following time is expressed in microseconds, so 1000000 is equivalent
+# to one second. Note that a negative number disables the slow log, while
+# a value of zero forces the logging of every command.
+slowlog-log-slower-than 10000
 
-appendonly no
-
-# The name of the append only file (default: "appendonly.aof")
-
-appendfilename "appendonly.aof"
-
-# The fsync() call tells the Operating System to actually write data on disk
-# instead to wait for more data in the output buffer. Some OS will really flush
-# data on disk, some other OS will just try to do it ASAP.
-#
-# Redis supports three different modes:
-#
-# no: don't fsync, just let the OS flush the data when it wants. Faster.
-# always: fsync after every write to the append only log . Slow, Safest.
-# everysec: fsync only one time every second. Compromise.
-#
-# The default is "everysec", as that's usually the right compromise between
-# speed and data safety. It's up to you to understand if you can relax this to
-# "no" that will let the operating system flush the output buffer when
-# it wants, for better performances (but if you can live with the idea of
-# some data loss consider the default persistence mode that's snapshotting),
-# or on the contrary, use "always" that's very slow but a bit safer than
-# everysec.
-#
-# More details please check the following article:
-# http://antirez.com/post/redis-persistence-demystified.html
-#
-# If unsure, use "everysec".
-
-# appendfsync always
-appendfsync everysec
-# appendfsync no
-
-# When the AOF fsync policy is set to always or everysec, and a background
-# saving process (a background save or AOF log background rewriting) is
-# performing a lot of I/O against the disk, in some Linux configurations
-# Redis may block too long on the fsync() call. Note that there is no fix for
-# this currently, as even performing fsync in a different thread will block
-# our synchronous write(2) call.
-#
-# In order to mitigate this problem it's possible to use the following option
-# that will prevent fsync() from being called in the main process while a
-# BGSAVE or BGREWRITEAOF is in progress.
-#
-# This means that while another child is saving, the durability of Redis is
-# the same as "appendfsync none". In practical terms, this means that it is
-# possible to lose up to 30 seconds of log in the worst scenario (with the
-# default Linux settings).
-#
-# If you have latency problems turn this to "yes". Otherwise leave it as
-# "no" that is the safest pick from the point of view of durability.
-
-no-appendfsync-on-rewrite no
-
-# Automatic rewrite of the append only file.
-# Redis is able to automatically rewrite the log file implicitly calling
-# BGREWRITEAOF when the AOF log size grows by the specified percentage.
-#
-# This is how it works: Redis remembers the size of the AOF file after the
-# latest rewrite (if no rewrite has happened since the restart, the size of
-# the AOF at startup is used).
-#
-# This base size is compared to the current size. If the current size is
-# bigger than the specified percentage, the rewrite is triggered. Also
-# you need to specify a minimal size for the AOF file to be rewritten, this
-# is useful to avoid rewriting the AOF file even if the percentage increase
-# is reached but it is still pretty small.
-#
-# Specify a percentage of zero in order to disable the automatic AOF
-# rewrite feature.
-
-auto-aof-rewrite-percentage 100
-auto-aof-rewrite-min-size 64mb
+# There is no limit to this length. Just be aware that it will consume memory.
+# You can reclaim memory used by the slow log with SLOWLOG RESET.
+slowlog-max-len 128
 
 ################################ LUA SCRIPTING  ###############################
 
@@ -537,180 +424,45 @@ auto-aof-rewrite-min-size 64mb
 # Set it to 0 or a negative value for unlimited execution without warnings.
 lua-time-limit 5000
 
-################################## SLOW LOG ###################################
-
-# The Redis Slow Log is a system to log queries that exceeded a specified
-# execution time. The execution time does not include the I/O operations
-# like talking with the client, sending the reply and so forth,
-# but just the time needed to actually execute the command (this is the only
-# stage of command execution where the thread is blocked and can not serve
-# other requests in the meantime).
-#
-# You can configure the slow log with two parameters: one tells Redis
-# what is the execution time, in microseconds, to exceed in order for the
-# command to get logged, and the other parameter is the length of the
-# slow log. When a new command is logged the oldest one is removed from the
-# queue of logged commands.
-
-# The following time is expressed in microseconds, so 1000000 is equivalent
-# to one second. Note that a negative number disables the slow log, while
-# a value of zero forces the logging of every command.
-slowlog-log-slower-than 10000
-
-# There is no limit to this length. Just be aware that it will consume memory.
-# You can reclaim memory used by the slow log with SLOWLOG RESET.
-slowlog-max-len 128
-
-############################# Event notification ##############################
-
-# Redis can notify Pub/Sub clients about events happening in the key space.
-# This feature is documented at http://redis.io/topics/keyspace-events
-#
-# For instance if keyspace events notification is enabled, and a client
-# performs a DEL operation on key "foo" stored in the Database 0, two
-# messages will be published via Pub/Sub:
-#
-# PUBLISH __keyspace@0__:foo del
-# PUBLISH __keyevent@0__:del foo
-#
-# It is possible to select the events that Redis will notify among a set
-# of classes. Every class is identified by a single character:
-#
-#  K     Keyspace events, published with __keyspace@<db>__ prefix.
-#  E     Keyevent events, published with __keyevent@<db>__ prefix.
-#  g     Generic commands (non-type specific) like DEL, EXPIRE, RENAME, ...
-#  $     String commands
-#  l     List commands
-#  s     Set commands
-#  h     Hash commands
-#  z     Sorted set commands
-#  x     Expired events (events generated every time a key expires)
-#  e     Evicted events (events generated when a key is evicted for maxmemory)
-#  A     Alias for g$lshzxe, so that the "AKE" string means all the events.
-#
-#  The "notify-keyspace-events" takes as argument a string that is composed
-#  by zero or multiple characters. The empty string means that notifications
-#  are disabled at all.
-#
-#  Example: to enable list and generic events, from the point of view of the
-#           event name, use:
-#
-#  notify-keyspace-events Elg
-#
-#  Example 2: to get the stream of the expired keys subscribing to channel
-#             name __keyevent@0__:expired use:
-#
-#  notify-keyspace-events Ex
-#
-#  By default all notifications are disabled because most users don't need
-#  this feature and the feature has some overhead. Note that if you don't
-#  specify at least one of K or E, no events will be delivered.
-notify-keyspace-events ""
-
 ############################### ADVANCED CONFIG ###############################
+## Since some redis clients would check info command's output, this configuration
+## would be set in 'misc' section of 'info's output
+#additional-misc-info   redis_version:2.8.9\nredis_trick:yes
 
-# Hashes are encoded using a memory efficient data structure when they have a
-# small number of entries, and the biggest entry does not exceed a given
-# threshold. These thresholds can be configured using the following directives.
-hash-max-ziplist-entries 512
-hash-max-ziplist-value 64
 
-# Similarly to hashes, small lists are also encoded in a special way in order
-# to save a lot of space. The special representation is only used when
-# you are under the following limits:
-list-max-ziplist-entries 512
-list-max-ziplist-value 64
+# HyperLogLog sparse representation bytes limit. The limit includes the
+# 16 bytes header. When an HyperLogLog using the sparse representation crosses
+# this limit, it is convereted into the dense representation.
+#
+# A value greater than 16000 is totally useless, since at that point the
+# dense representation is more memory efficient.
+# 
+# The suggested value is ~ 3000 in order to have the benefits of
+# the space efficient encoding without slowing down too much PFADD,
+# which is O(N) with the sparse encoding. Thev value can be raised to
+# ~ 10000 when CPU is not a concern, but space is, and the data set is
+# composed of many HyperLogLogs with cardinality in the 0 - 15000 range.
+hll-sparse-max-bytes 3000
 
-# Sets have a special encoding in just one case: when a set is composed
-# of just strings that happens to be integers in radix 10 in the range
-# of 64 bit signed integers.
-# The following configuration setting sets the limit in the size of the
-# set in order to use this special memory saving encoding.
-set-max-intset-entries 512
+#trusted-ip  10.10.10.10
+#trusted-ip  10.10.10.*
 
-# Similarly to hashes and lists, sorted sets are also specially encoded in
-# order to save a lot of space. This encoding is only used when the length and
-# elements of a sorted set are below the following limits:
-zset-max-ziplist-entries 128
-zset-max-ziplist-value 64
+# By default Ardb would not compact whole db after loading a snapshot, which may happens
+# when slave syncing from master, processing 'import' command from client.
+# This configuration only works with rocksdb engine.
+# If ardb dord not compact data after loading snapshot file, there would be poor read performance before rocksdb
+# completes the next compaction task internally. While the compaction task would cost very long time for a huge data set. 
+compact-after-snapshot-load  false
 
-# Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in
-# order to help rehashing the main Redis hash table (the one mapping top-level
-# keys to values). The hash table implementation Redis uses (see dict.c)
-# performs a lazy rehashing: the more operation you run into a hash table
-# that is rehashing, the more rehashing "steps" are performed, so if the
-# server is idle the rehashing is never complete and some more memory is used
-# by the hash table.
-#
-# The default is to use this millisecond 10 times every second in order to
-# active rehashing the main dictionaries, freeing memory when possible.
-#
-# If unsure:
-# use "activerehashing no" if you have hard latency requirements and it is
-# not a good thing in your environment that Redis can reply form time to time
-# to queries with 2 milliseconds delay.
-#
-# use "activerehashing yes" if you don't have such hard requirements but
-# want to free memory asap when possible.
-activerehashing yes
+# Ardb would store cursor in memory 
+scan-redis-compatible         yes
+scan-cursor-expire-after      60
 
-# The client output buffer limits can be used to force disconnection of clients
-# that are not reading data from the server fast enough for some reason (a
-# common reason is that a Pub/Sub client can't consume messages as fast as the
-# publisher can produce them).
-#
-# The limit can be set differently for the three different classes of clients:
-#
-# normal -> normal clients
-# slave  -> slave clients and MONITOR clients
-# pubsub -> clients subscribed to at least one pubsub channel or pattern
-#
-# The syntax of every client-output-buffer-limit directive is the following:
-#
-# client-output-buffer-limit <class> <hard limit> <soft limit> <soft seconds>
-#
-# A client is immediately disconnected once the hard limit is reached, or if
-# the soft limit is reached and remains reached for the specified number of
-# seconds (continuously).
-# So for instance if the hard limit is 32 megabytes and the soft limit is
-# 16 megabytes / 10 seconds, the client will get disconnected immediately
-# if the size of the output buffers reach 32 megabytes, but will also get
-# disconnected if the client reaches 16 megabytes and continuously overcomes
-# the limit for 10 seconds.
-#
-# By default normal clients are not limited because they don't receive data
-# without asking (in a push way), but just after a request, so only
-# asynchronous clients may create a scenario where data is requested faster
-# than it can read.
-#
-# Instead there is a default limit for pubsub and slave clients, since
-# subscribers and slaves receive data in a push fashion.
-#
-# Both the hard or the soft limit can be disabled by setting them to zero.
-client-output-buffer-limit normal 0 0 0
-client-output-buffer-limit slave 256mb 64mb 60
-client-output-buffer-limit pubsub 32mb 8mb 60
+redis-compatible-mode     yes
+redis-compatible-version  2.8.0
 
-# Redis calls an internal function to perform many background tasks, like
-# closing connections of clients in timeout, purging expired keys that are
-# never requested, and so forth.
-#
-# Not all tasks are performed with the same frequency, but Redis checks for
-# tasks to perform accordingly to the specified "hz" value.
-#
-# By default "hz" is set to 10. Raising the value will use more CPU when
-# Redis is idle, but at the same time will make Redis more responsive when
-# there are many keys expiring at the same time, and timeouts may be
-# handled with more precision.
-#
-# The range is between 1 and 500, however a value over 100 is usually not
-# a good idea. Most users should use the default of 10 and raise this up to
-# 100 only in environments where very low latency is required.
-hz 10
+statistics-log-period     600
 
-# When a child rewrites the AOF file, if the following option is enabled
-# the file will be fsync-ed every 32 MB of data generated. This is useful
-# in order to commit the file to the disk more incrementally and avoid
-# big latency spikes.
-aof-rewrite-incremental-fsync yes
 
+# Range deletion min size trigger 
+range-delete-min-size  100
diff --git a/installing_deps.sh b/installing_deps.sh
index 05012f3a..246fd2b2 100755
--- a/installing_deps.sh
+++ b/installing_deps.sh
@@ -60,11 +60,9 @@ sudo ldconfig
 popd
 popd
 
-# REDIS LEVEL DB #
-test ! -d redis-leveldb/ && git clone https://github.com/KDr2/redis-leveldb.git
-pushd redis-leveldb/
-git submodule init
-git submodule update
+# ARDB #
+test ! -d ardb/ && git clone https://github.com/yinqiwen/ardb.git
+pushd ardb/
 make
 popd
 
@@ -84,7 +82,7 @@ if [ -z "$VIRTUAL_ENV" ]; then
     echo export AIL_BIN=$(pwd)/bin/ >> ./AILENV/bin/activate
     echo export AIL_FLASK=$(pwd)/var/www/ >> ./AILENV/bin/activate
     echo export AIL_REDIS=$(pwd)/redis/src/ >> ./AILENV/bin/activate
-    echo export AIL_LEVELDB=$(pwd)/redis-leveldb/ >> ./AILENV/bin/activate
+    echo export AIL_ARDB=$(pwd)/ardb/src/ >> ./AILENV/bin/activate
 
     . ./AILENV/bin/activate
 
@@ -93,7 +91,6 @@ fi
 year1=20`date +%y`
 year2=20`date --date='-1 year' +%y`
 mkdir -p $AIL_HOME/{PASTES,Blooms,dumps}
-mkdir -p $AIL_HOME/LEVEL_DB_DATA/{$year1,$year2}
 
 pip3 install -U pip
 pip3 install -U -r pip3_packages_requirement.txt
diff --git a/python3_upgrade.sh b/python3_upgrade.sh
index 06f84848..f99bce8e 100755
--- a/python3_upgrade.sh
+++ b/python3_upgrade.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 
 sudo rm -rf AILENV
-sudo mv indexdir old_indexdir_python2
+mkdir old
+sudo mv indexdir old/old_indexdir_python2
+sudo mv LEVEL_DB_DATA old/old_LEVEL_DB_DATA
 
 ./installing_deps.sh
diff --git a/var/www/modules/Flask_config.py b/var/www/modules/Flask_config.py
index 26a72e76..f9e7aef4 100644
--- a/var/www/modules/Flask_config.py
+++ b/var/www/modules/Flask_config.py
@@ -36,27 +36,27 @@ r_serv_log = redis.StrictRedis(
     decode_responses=True)
 
 r_serv_charts = redis.StrictRedis(
-    host=cfg.get("Redis_Level_DB_Trending", "host"),
-    port=cfg.getint("Redis_Level_DB_Trending", "port"),
-    db=cfg.getint("Redis_Level_DB_Trending", "db"),
+    host=cfg.get("ARDB_Trending", "host"),
+    port=cfg.getint("ARDB_Trending", "port"),
+    db=cfg.getint("ARDB_Trending", "db"),
     decode_responses=True)
 
 r_serv_sentiment = redis.StrictRedis(
-        host=cfg.get("Redis_Level_DB_Sentiment", "host"),
-        port=cfg.getint("Redis_Level_DB_Sentiment", "port"),
-        db=cfg.getint("Redis_Level_DB_Sentiment", "db"),
+        host=cfg.get("ARDB_Sentiment", "host"),
+        port=cfg.getint("ARDB_Sentiment", "port"),
+        db=cfg.getint("ARDB_Sentiment", "db"),
         decode_responses=True)
 
 r_serv_term = redis.StrictRedis(
-        host=cfg.get("Redis_Level_DB_TermFreq", "host"),
-        port=cfg.getint("Redis_Level_DB_TermFreq", "port"),
-        db=cfg.getint("Redis_Level_DB_TermFreq", "db"),
+        host=cfg.get("ARDB_TermFreq", "host"),
+        port=cfg.getint("ARDB_TermFreq", "port"),
+        db=cfg.getint("ARDB_TermFreq", "db"),
         decode_responses=True)
 
 r_serv_cred = redis.StrictRedis(
-        host=cfg.get("Redis_Level_DB_TermCred", "host"),
-        port=cfg.getint("Redis_Level_DB_TermCred", "port"),
-        db=cfg.getint("Redis_Level_DB_TermCred", "db"),
+        host=cfg.get("ARDB_TermCred", "host"),
+        port=cfg.getint("ARDB_TermCred", "port"),
+        db=cfg.getint("ARDB_TermCred", "db"),
         decode_responses=True)
 
 r_serv_pasteName = redis.StrictRedis(
diff --git a/var/www/modules/browsepastes/Flask_browsepastes.py b/var/www/modules/browsepastes/Flask_browsepastes.py
index 7cac1a9d..67923fbd 100644
--- a/var/www/modules/browsepastes/Flask_browsepastes.py
+++ b/var/www/modules/browsepastes/Flask_browsepastes.py
@@ -23,22 +23,22 @@ max_preview_modal = Flask_config.max_preview_modal
 
 #init all lvlDB servers
 curYear = datetime.now().year
+int_year = int(curYear)
 r_serv_db = {}
 # port generated automatically depending on available levelDB date
 yearList = []
-lvdbdir= os.path.join(os.environ['AIL_HOME'], "LEVEL_DB_DATA/")
-for year in os.listdir(lvdbdir):
-    try:
-        intYear = int(year)
-    except:
-        continue
 
-    yearList.append([year, intYear, int(curYear) == intYear])
+for x in range(0, (int_year - 2018) + 1):
+
+    intYear = int_year - x
+
+    yearList.append([str(intYear), intYear, int(curYear) == intYear])
     r_serv_db[intYear] = redis.StrictRedis(
-        host=cfg.get("Redis_Level_DB", "host"),
-        port=intYear,
-        db=cfg.getint("Redis_Level_DB", "db"),
+        host=cfg.get("ARDB_DB", "host"),
+        port=cfg.getint("ARDB_DB", "port"),
+        db=intYear,
         decode_responses=True)
+
 yearList.sort(reverse=True)
 
 browsepastes = Blueprint('browsepastes', __name__, template_folder='templates')
@@ -86,7 +86,13 @@ def browseImportantPaste():
 @browsepastes.route("/importantPasteByModule/", methods=['GET'])
 def importantPasteByModule():
     module_name = request.args.get('moduleName')
-    currentSelectYear = int(request.args.get('year'))
+
+    # # TODO: VERIFY YEAR VALIDITY
+    try:
+        currentSelectYear = int(request.args.get('year'))
+    except:
+        print('Invalid year input')
+        currentSelectYear = int(datetime.now().year)
 
     all_content = []
     paste_date = []